*{
margin:0;
padding:0;
}
body{
    width:100%;
   /*  display:grid;
    place-items: center; */
}
.canvas-style{
    width:100%;
    height:100vh;
    display: grid;
    place-items:center;
    overflow: hidden;
}
/* 不知道为啥gitee出来没有#lasers，所以改成class */
.lasers-canvas{
    max-width:100%;
    max-height:100vh;
}



